WO2021201086A1 - Composition de résine de polypropylène renforcée par des fibres et son procédé de fabrication - Google Patents

Composition de résine de polypropylène renforcée par des fibres et son procédé de fabrication Download PDF

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Publication number
WO2021201086A1
WO2021201086A1 PCT/JP2021/013790 JP2021013790W WO2021201086A1 WO 2021201086 A1 WO2021201086 A1 WO 2021201086A1 JP 2021013790 W JP2021013790 W JP 2021013790W WO 2021201086 A1 WO2021201086 A1 WO 2021201086A1
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WIPO (PCT)
Prior art keywords
polypropylene
fiber
based resin
unsaturated carboxylic
carboxylic acid
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PCT/JP2021/013790
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English (en)
Japanese (ja)
Inventor
裕一 松田
Original Assignee
株式会社プライムポリマー
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Application filed by 株式会社プライムポリマー filed Critical 株式会社プライムポリマー
Priority to US17/780,443 priority Critical patent/US20230002569A1/en
Priority to BR112022018910A priority patent/BR112022018910A2/pt
Priority to JP2022512610A priority patent/JP7471394B2/ja
Priority to CN202180025429.4A priority patent/CN115335449B/zh
Priority to MX2022011432A priority patent/MX2022011432A/es
Priority to EP21782247.7A priority patent/EP4130142A4/fr
Publication of WO2021201086A1 publication Critical patent/WO2021201086A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
    • C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene

Definitions

  • the present invention relates to a fiber-reinforced polypropylene-based resin composition capable of producing a molded product having excellent strength (particularly creep resistance) and a method for producing the same.
  • the fiber reinforced resin molded product is lightweight and has excellent rigidity and heat resistance, it is used in various fields such as electrical equipment, automobiles, housing equipment, and medical equipment.
  • the fiber-reinforced resin molded body for example, a molded body using reinforcing fibers such as glass fiber and a polyolefin-based resin such as polypropylene is known.
  • Polyolefin-based resins are generally inexpensive, have excellent processability and chemical resistance, do not easily generate harmful gases even when incinerated, and have excellent recyclability. Therefore, polyolefin-based resins are attracting attention as matrix resins for fiber-reinforced resins.
  • polypropylene-based resins which are inexpensive, have a low specific density, have relatively high heat resistance, and have excellent properties such as moldability and chemical resistance, are attracting attention.
  • Polypropylene resin has low polarity, so it tends to be inferior in interfacial adhesiveness with reinforcing fibers. Therefore, a method of improving the interfacial adhesiveness with the reinforcing fiber by using an unsaturated carboxylic acid-modified polypropylene-based resin is known.
  • the unsaturated carboxylic acid-modified polypropylene resin is usually obtained by introducing an unsaturated carboxylic acid unit into the unsaturated polypropylene resin using an unsaturated carboxylic acid component.
  • an unsaturated carboxylic acid component usually obtained by introducing an unsaturated carboxylic acid unit into the unsaturated polypropylene resin using an unsaturated carboxylic acid component.
  • a certain amount of unreacted unsaturated carboxylic component tends to remain in the resin, and if the remaining amount is large, the physical properties of the fiber-reinforced resin molded product. May have an adverse effect on.
  • Patent Document 1 proposes that the decrease in physical properties is suppressed by reducing the amount of the unsaturated carboxylic acid monomer in the dry residue of the fiber converging agent containing the acid-modified polypropylene resin to 10,000 ppm or less. There is.
  • an object of the present invention is to provide a fiber-reinforced polypropylene-based resin composition capable of producing a molded product having excellent strength (particularly creep resistance) and a method for producing the same.
  • the present inventor uses an unsaturated carboxylic acid-modified polypropylene-based resin in which the volatile amount of a specific type of oligomer measured under specific conditions is less than or equal to a specific amount. We have found that it is very effective in improving creep resistance), and have completed the present invention. That is, the gist of the present invention is as follows.
  • the amount of the volatile component derived from the unsaturated carboxylic acid that volatilizes when the unsaturated carboxylic acid-modified polypropylene resin (B) is heated at 150 ° C. for 30 minutes is 10 to 1000 ⁇ g / g according to [1]. Fiber-reinforced polypropylene-based resin composition.
  • the present invention it is possible to provide a fiber-reinforced polypropylene-based resin composition capable of producing a molded product having excellent strength (particularly creep resistance) and a method for producing the same.
  • the unsaturated carboxylic acid-modified polypropylene system in which the amount of the oligomer component having 24 or less carbon atoms derived from polypropylene that volatilizes under specific conditions is within a specific range from another viewpoint instead of maleic anhydride.
  • the resin (B) a fiber-reinforced polypropylene-based resin composition capable of producing a molded product having excellent strength (particularly creep resistance) is provided.
  • the polypropylene-based resin (A) used in the present invention is typically a propylene homopolymer.
  • a propylene-based copolymer (a copolymer of propylene and another monomer) may be used.
  • the propylene-based copolymer include a random copolymer or a block copolymer of propylene and ethylene and at least one ⁇ -olefin selected from ⁇ -olefins having 4 to 20 carbon atoms.
  • the content of the propylene-derived skeleton in the random copolymer is usually 90 to 99 mol%, preferably 92 to 98 mol%.
  • the skeletal content due to propylene in the block copolymer is usually 70 to 99 mol%, preferably 75 to 98 mol%.
  • the polypropylene-based resin (A) two or more kinds of propylene-based resins (for example, a propylene homopolymer and a propylene-based copolymer) may be used in combination.
  • the polypropylene-based resin (A) contains a propylene-based copolymer
  • specific examples of the monomers other than propylene used in the propylene-based copolymer include ethylene, 1-butene, 2-methyl-1-propene, and 2-.
  • the melt flow rate (MFR) at 230 ° C. and a load of 2.16 kg measured according to ASTM D1238 of polypropylene resin (A) is preferably 0.1 to 500 g / 10 minutes, more preferably 0.2. It is ⁇ 400 g / 10 minutes, particularly preferably 0.3 ⁇ 300 g / 10 minutes.
  • the polypropylene-based resin (A) is preferably an isotactic polypropylene-based resin.
  • the isotactic propylene resin is a propylene resin having an isotactic pentad fraction of 0.9 or more, preferably 0.95 or more, which is determined by an NMR method.
  • the present invention is not limited to this, and the polypropylene-based resin (A) may be a syndiotactic polypropylene-based resin or an atactic polypropylene-based resin.
  • the polypropylene-based resin (A) may be prepared by using a Ziegler-Natta catalyst or may be prepared by using a metallocene catalyst.
  • the unsaturated carboxylic acid-modified polypropylene-based resin (B) used in the present invention is obtained by acid-modifying the polypropylene-based resin with an unsaturated carboxylic acid or a derivative thereof.
  • Examples of the modification method include graft modification and copolymerization.
  • unsaturated carboxylic acid used for modification examples include acrylic acid, methacrylic acid, maleic acid, nadic acid, fumaric acid, itaconic acid, crotonic acid, citraconic acid, sorbic acid, mesaconic acid, angelic acid, and phthalic acid. Be done.
  • Derivatives of unsaturated carboxylic acids include, for example, acid anhydrides, esters, amides, imides, and metal salts.
  • maleic anhydride examples thereof include maleic anhydride, itaconic anhydride, citraconic anhydride, nadic acid anhydride, phthalic anhydride, methyl acrylate, methyl methacrylate, ethyl acrylate, butyl acrylate, monoethyl maleate ester, acrylamide, and the like.
  • examples thereof include maleic acid monoamide, maleimide, N-butylmaleimide, sodium acrylate, and sodium methacrylate.
  • unsaturated dicarboxylic acid and its derivative are preferable, maleic anhydride and phthalic anhydride are more preferable, and maleic anhydride is most preferable.
  • polypropylene and unsaturated carboxylic acid or a derivative thereof are kneaded together with an organic peroxide in an extruder to carry out graft copolymerization of the unsaturated carboxylic acid or its derivative for modification.
  • organic peroxide include benzoyl peroxide, lauroyl peroxide, azobisisobutyronitrile, dicumyl peroxide, t-butylhydroperoxide, ⁇ , ⁇ '-bis (t-butylperoxy).
  • Diisopropyl) benzene bis (t-butyldioxyisopropyl) benzene, 2,5-dimethyl-2,5-di (t-butylperoxy) hexane, 2,5-dimethyl-2,5-di (t-butyl) Peroxy) Hexin-3, di-t-butyl peroxide, cumenhydroperoxide can be mentioned.
  • the unsaturated carboxylic acid-modified polypropylene-based resin (B) preferably contains an anhydrous fatty acid-modified polypropylene-based resin, and more preferably contains a maleic anhydride-modified polypropylene-based resin.
  • the amount (volatile component amount) of the polypropylene-derived polypropylene-derived oligomer component having 24 or less carbon atoms that volatilizes when the unsaturated carboxylic acid-modified polypropylene resin (B) is heated at 150 ° C. for 30 minutes is 200 ⁇ g / g. Less than, preferably less than 150 ⁇ g / g, more preferably less than 50 ⁇ g / g. When the amount of the oligomer component volatilized under such specific conditions is within each of the above ranges, the strength (particularly creep resistance) of the molded product is improved.
  • the lower limit of each range is not particularly limited, and the smaller the amount of the volatile component, the more preferable.
  • the lower limit of each range is preferably 20 ⁇ g / g or more. ..
  • the amount of volatile components is a value measured by GC-MS (gas chromatography-mass spectrometry). Details of the measurement method will be described in the column of Examples.
  • the amount of volatile components derived from the unsaturated carboxylic acid that volatilizes when the unsaturated carboxylic acid-modified polypropylene resin (B) is heated at 150 ° C. for 30 minutes is preferably 10 to 1000 ⁇ g / g, more preferably 10. It is ⁇ 500 ⁇ g / g.
  • the amount of the volatile component derived from the unsaturated carboxylic acid that volatilizes under such specific conditions is within each of the above ranges, in combination with the action / effect caused by the small amount of the above-mentioned oligomer component, the molded product Strength (especially creep resistance) is further improved.
  • the amount of the volatile component derived from the unsaturated carboxylic acid is a value measured by GC-MS (gas chromatography-mass spectrometry). Details of the measurement method will be described in the column of Examples.
  • the graft amount of the unsaturated carboxylic acid or its derivative is preferably 0.3 to 5% by mass. More preferably, it is 0.5 to 3% by mass. Details of the method for measuring the amount of graft are described in the column of Examples.
  • the type and physical properties of the polypropylene-based resin that is the base of the unsaturated carboxylic acid-modified polypropylene-based resin (B) are not particularly limited. However, the same type and physical characteristics of the polypropylene-based resin (A) as those mentioned above can be used.
  • the type of reinforcing fiber (C) used in the present invention is not particularly limited.
  • Specific examples of the reinforcing fiber (C) include glass fiber, carbon fiber (carbon fiber), carbon nanotube, basic magnesium sulfate fiber (magnesium oxysulfate fiber), potassium titanate fiber, aluminum borate fiber, and calcium silicate fiber.
  • Synthetic fibers such as polyester, polyacrylonitrile, polyamide, aramid and polyolefin, and modified fibers having their surfaces and terminals chemically modified.
  • the reinforcing fiber (C) preferably contains glass fiber.
  • Chopped strands are preferable as the form of the reinforcing fiber (C).
  • the chopped strand usually has a length of 1 to 10 mm and a fiber diameter of 5 to 20 ⁇ m, preferably a length of 1.5 to 6 mm and a fiber diameter of 8 to 14 ⁇ m.
  • a continuous fiber bundle can also be used. Continuous fiber bundles are commercially available, for example, as rovings. Its fiber diameter is usually 5 to 30 ⁇ m, preferably 13 to 20 ⁇ m.
  • reinforcing fiber (C) only one type of reinforcing fiber may be used, or two or more types of reinforcing fibers may be used in combination.
  • the fiber-reinforced polypropylene-based resin composition of the present invention contains an elastomer component as an impact improver, a heat-resistant stabilizer, an antistatic agent, a weather-resistant stabilizer, a light-resistant stabilizer, an anti-aging agent, and an antioxidant, if necessary.
  • Additives such as copper damage inhibitors, fatty acid metal salts, softeners, dispersants, fillers, colorants, pigments, foaming agents and the like can be blended within a range that does not impair the object of the present invention.
  • the mixing order of the additives is arbitrary, and they may be mixed at the same time, or a multi-step mixing method in which some components are mixed and then the other components are mixed can be used. Above all, it is preferable to add a phenol-based antioxidant and / or a sulfur-based antioxidant.
  • the fiber-reinforced polypropylene-based resin composition of the present invention is a resin composition containing the polypropylene-based resin (A), the unsaturated carboxylic acid-modified polypropylene-based resin (B) and the reinforcing fibers (C) described above.
  • the content of the polypropylene-based resin (A) is preferably 90 to 50 parts by mass, based on a total of 100 parts by mass of the polypropylene-based resin (A) and the reinforcing fiber (C). It is preferably 80 to 60 parts by mass.
  • the content of the reinforcing fiber (C) is preferably 10 to 50 parts by mass, more preferably 20 to 40 parts by mass.
  • the content of the unsaturated carboxylic acid-modified polypropylene resin (B) is preferably 0.5 to 5 parts by mass, based on a total of 100 parts by mass of the polypropylene resin (A) and the reinforcing fiber (C). It is preferably 1 to 3 parts by mass.
  • the fiber-reinforced polypropylene-based resin composition of the present invention contains the polypropylene-based resin (A), the unsaturated carboxylic acid-modified polypropylene-based resin (B) and the reinforcing fiber (C) described above, and other components as necessary.
  • A polypropylene-based resin
  • B unsaturated carboxylic acid-modified polypropylene-based resin
  • C reinforcing fiber
  • pellets of a fiber-reinforced polypropylene-based resin composition can be obtained by mixing or melt-kneading each component with a mixing device.
  • the fiber-reinforced polypropylene-based resin composition of the present invention is obtained by kneading polypropylene and an unsaturated carboxylic acid or a derivative thereof together with an organic peroxide at 170 to 200 ° C. to obtain the unsaturated carboxylic acid-modified polypropylene-based resin (B). It is preferable to produce by a method including a step of obtaining. Such a step is a very effective step for removing a specific volatile component (oligomer component derived from polypropylene having 24 or less carbon atoms) from the unsaturated carboxylic acid-modified polypropylene-based resin (B).
  • a specific volatile component oligomer component derived from polypropylene having 24 or less carbon atoms
  • the resin temperature during kneading in the above step is 170 to 200 ° C, preferably 170 to 190 ° C.
  • the set temperature of the kneading portion of the extruder such as a twin-screw extruder is preferably 110 ° C. or higher and lower than the melting point of polypropylene. , 120 ° C. or higher and 150 ° C. or lower are more preferable.
  • the kneading portion of the twin-screw extruder is a portion provided with a kneading (screw segment), and is a portion for plasticizing and heat-kneading the resin by a shearing action obtained by rotating the screw.
  • the set temperature of the die portion at the tip of the twin-screw extruder is preferably 170 ° C. or higher and lower than 200 ° C., and preferably 170 ° C. or higher and 190 ° C. or lower.
  • the die portion is not affected by the temperature rise due to the shear heat generation action due to the screw rotation, and the resin temperature of the kneaded portion is maintained. Therefore, it is preferable to set the temperature of the die portion higher than that of the kneaded portion.
  • the amount of maleic anhydride grafted, the amount of maleic anhydride-derived volatile component, and the amount of oligomeric component having 24 or less carbon atoms of modified polypropylene (B'-2) [Polymer Asia, trade name PA-Bond363C] are as follows. Measured by method. The results are shown in Table 1.
  • Amount of volatile components derived from maleic anhydride 50 mg of maleic anhydride-modified polypropylene-based resin was collected and heated at 150 ° C. for 30 minutes, and the amount of volatile components derived from maleic anhydride was quantified by GC-MS (gas chromatography-mass spectrometry).
  • DMTP an antioxidant
  • the mixture obtained as described above is supplied to a twin-screw extrusion kneader in the same direction [manufactured by Japan Steel Works, Ltd., TEX® (registered trademark) 30 ⁇ ], and is made of glass fiber (T-480) as a reinforcing fiber (C). ) [Nippon Electric Glass Co., Ltd., trade name T-480, chopped strand] is side-fed from the middle of a twin-screw extrusion kneader in the same direction and heat-kneaded at 240 ° C. to form a fiber-reinforced polypropylene resin composition. Pellets were obtained.
  • Example 2 As the unsaturated carboxylic acid-modified polypropylene-based resin (B), maleic anhydride-modified polypropylene (B-2) obtained in Production Example 2 was used instead of the maleic anhydride-modified polypropylene (B-1) obtained in Production Example 1. Pellets of a fiber-reinforced polypropylene-based resin composition were obtained in the same manner as in Example 1 except that they were used.
  • Example 3 As the unsaturated carboxylic acid-modified polypropylene-based resin (B), maleic anhydride-modified polypropylene (B-3) obtained in Production Example 3 was used instead of the maleic anhydride-modified polypropylene (B-1) obtained in Production Example 1. Pellets of a fiber-reinforced polypropylene-based resin composition were obtained in the same manner as in Example 1 except that they were used.
  • the molded bodies of the glass fiber reinforced polypropylene-based resin compositions of Examples 1 to 3 had a long creep rupture time, that is, excellent creep resistance.
  • Comparative Examples 1 and 2 were examples in which the amount of the oligomer component having 24 or less carbon atoms exceeded 200 ⁇ g / g, and the creep rupture time was short, that is, the creep resistance was inferior.
  • the fiber-reinforced polypropylene-based resin composition of the present invention can be suitably used as a material for a molded product having excellent creep resistance in various fields.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

L'invention concerne une composition de résine de polypropylène renforcée par des fibres comprenant : une résine de polypropylène (A) ; une résine de polypropylène modifiée par un acide carboxylique insaturé (B) qui contient moins de 200 μg/g d'un composant oligomère dérivé du polypropylène comportant 24 atomes de carbone ou moins et qui s'évapore lorsqu'il est chauffé pendant 30 minutes à 150 °C ; et des fibres de renforcement (C). L'invention concerne également un procédé de fabrication de la composition de résine de polypropylène renforcée par des fibres, le procédé comprenant une étape consistant à obtenir la résine de polypropylène modifiée par un acide carboxylique insaturé (B) par malaxage du polypropylène et d'un acide carboxylique insaturé ou d'un dérivé de celui-ci avec un peroxyde organique de 170 à 200 °C.
PCT/JP2021/013790 2020-03-31 2021-03-31 Composition de résine de polypropylène renforcée par des fibres et son procédé de fabrication WO2021201086A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US17/780,443 US20230002569A1 (en) 2020-03-31 2021-03-31 Fiber-reinforced polypropylene-based resin composition and method for production thereof
BR112022018910A BR112022018910A2 (pt) 2020-03-31 2021-03-31 Composição de resina à base de polipropileno reforçada com fibra e método para produção da mesma
JP2022512610A JP7471394B2 (ja) 2020-03-31 2021-03-31 繊維強化ポリプロピレン系樹脂組成物及びその製造方法
CN202180025429.4A CN115335449B (zh) 2020-03-31 2021-03-31 纤维强化聚丙烯系树脂组合物及其制造方法
MX2022011432A MX2022011432A (es) 2020-03-31 2021-03-31 Composicion de resina a base de polipropileno reforzado con fibra y metodo de produccion de la misma.
EP21782247.7A EP4130142A4 (fr) 2020-03-31 2021-03-31 Composition de résine de polypropylène renforcée par des fibres et son procédé de fabrication

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JP2020062388 2020-03-31
JP2020-062388 2020-03-31

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US (1) US20230002569A1 (fr)
EP (1) EP4130142A4 (fr)
JP (1) JP7471394B2 (fr)
CN (1) CN115335449B (fr)
BR (1) BR112022018910A2 (fr)
MX (1) MX2022011432A (fr)
WO (1) WO2021201086A1 (fr)

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JP2016006245A (ja) 2014-05-22 2016-01-14 ユニチカ株式会社 繊維収束剤、繊維状強化材および繊維強化樹脂組成物

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WO2010119480A1 (fr) * 2009-04-14 2010-10-21 化薬アクゾ株式会社 Polypropylène modifié par anhydride maléique et composition de résine le comprenant
JP2014198847A (ja) * 2013-03-13 2014-10-23 三井化学株式会社 酸変性ポリオレフィン粒子及びその製造方法
JP2016006245A (ja) 2014-05-22 2016-01-14 ユニチカ株式会社 繊維収束剤、繊維状強化材および繊維強化樹脂組成物

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Title
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JP7471394B2 (ja) 2024-04-19
EP4130142A4 (fr) 2024-04-24
BR112022018910A2 (pt) 2022-11-08
JPWO2021201086A1 (fr) 2021-10-07
CN115335449B (zh) 2024-05-31
CN115335449A (zh) 2022-11-11
MX2022011432A (es) 2022-10-03
EP4130142A1 (fr) 2023-02-08

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